Study and control of electron transfer in mesoporous semiconductor in terms of surface and moerphology in dye-sensitized solar cells

2016 Fiscal Year Final Research Report

• Project/Area Number: 25790013
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nanomaterials chemistry
• Research Institution: The University of Tokyo (2015-2016); Tokyo Institute of Technology (2013-2014)
• Principal Investigator: Maitani Masato 東京大学, 先端科学技術研究センター, 特任准教授 (40578647)
• Research Collaborator: TAKAHASHI Takashi ; FUSE Shin-ichiro ; MASUI Hisashi ; WADA Yuji ; TOYODA Taro ; SHEN Qing ; OHTANI Bunsho ; SEGAWA Hiroshi ; KUBO Takaya
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 酸化物半導体 / ナノ粒子 / 表面制御 / 電子移動 / 光電変換デバイス / 色素増感太陽電池 / ペロブスカイト太陽電池 / ナノ構造制御

Outline of Final Research Achievements

I revealed the key elements determining the electron transport properties in dye-sensitized solar cells by applying the control of exposed facet, nanoparticle morphology, and meso-porous construction with oriented anisotropic nano-sheets. I further applied these understandings to the control of electron transport, such as carrier injection, recombination, and transport in meso-porous TiO2 by controlling exposed facet to improve the conversion efficiency of dye-sensitized solar cells.
These researches were extensively applied to the peorvskite solar cells as the next-generation printable solar cells with high efficiency, which was not included in the proposal, in order to reveal the key elements of higher performances.

Free Research Field

表面化学、光電変換デバイス